PBS
Pbs: The Great War: Interactive Timeline
This site has an interactive timeline of World War I. Choose a year to see important events listed chronologically. You can click on battles and names of famous people to read accompanying thoughts of historians.
Ibis Communications
Eye Witness to History: Battle at Gallipoli, 1915
This article offers a detailed description of the Battle at Gallipoli in 1915 during WWI. Includes maps and photos.